Study of orientation in miscible and heterogeneous poly(styrene)/poly(vinyl methyl ether) blends
β Scribed by Essaid Abtal; Robert E. Prud'homme
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 747 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0032-3861
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Polystyrene (PS) samples carrying terminal or in-chain nitroxide spin labels have been blended with poly(vinyl methyl ether) (PVME) in varying proportions and their electron spin resonance (ESR) spectra recorded over a range of temperatures. The spectra are mainly of the slow-motion type but reΓect
Miscibility in blends of poly(methyl methacrylate) (PMMA) with poly(vinyl acetate) (PVAc) has been studied by using differential scanning calorimetry and i.r. spectra techniques. PMMA is miscible with PVAc at all compositions. PMMA/PVAc blends show a lower critical solution temperature. The FTIR spe